#include<stdio.h>
#include<malloc.h>
#define ERROR 0
char *strcpy(char *src)
{
	if(src=="")
      return ERROR;
	int i=0,L=0,N=100;
	while (src[i]!='\0')
	   i++;
	L=i;
    char *a=(char*)malloc(sizeof(char)*N+1);
    for(i=0;i<=L;i++)
	   a[i]=src[i];
	a[i]='\0';
	return a;
}

